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Video Endoscopic Sequence 25 of 25.
The treatment of bleeding gastric varices is one of the final frontiers of flexible endoscopy—a chapter as yet incomplete in our textbooks.
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Video Endoscopic Sequence 1 of 16.
Endoscopic Ablation with Cyanoacrylate Glue
This 49 year-old female was hospitalized in a social security hospital in El Salvador, She was discharged from the hospital on day 10, after that visit us for a therapeutical endoscopy.
An upper endoscopy was practiced shows gastric varices of the fundus with a small quantity of blood emerging from the varix.
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Video Endoscopic Sequence 2 of 16..
Although gastric varices tend to bleed less frequently than esophageal varices, the morbidity and mortality associated with gastric variceal hemorrhage are substantial.
Gastric varices are dilated submucosal veins in the stomach, which can be a life-threatening cause of upper gastrointestinal hemorrhage. They are most commonly found in patients with portal hypertension, or elevated pressure in the portal vein system, which may be a complication of cirrhosis. Gastric varices may also be found in patients with thrombosis of the splenic vein, into which the short gastric veins which drain the fundus of the stomach flow. The latter may be a complication of acute pancreatitis, pancreatic cancer, or other abdominal tumours.
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Video Endoscopic Sequence 3 of 16.
In the same day a therapeutic endoscopy a histoacryl injection is programed, under general anesthesia with endotracheal tube is achieved. Stigmata of recent bleeding is observed.
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Video Endoscopic Sequence 4 of 16.
Gastric varices (GV) occur in 20% of patients with portal hypertension. GV located in the fundus (FV) tend to cause serious bleeding and are reported to be less responsive to endoscopic treatment. The risk of FV bleeding may range from 55% to 78%, with a bleeding-related mortality rate of 45%.
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Video Endoscopic Sequence 5 of 16.
N-butyl-2-cyanoacrylate (Histoacryl) is a watery substance that polymerizes and hardens instantaneously when it comes into contact with blood. This unique property makes it attractive for use in obliterating varices. It is particularly useful in the treatment of fundic varices. Histoacryl is reconstituted with Lipiodol (0.8 mL in 0.5 mL), an oil-based radiopaque contrast agent). the therapeutic channel of the endoscope is first rinsed with 2mL of Lipiodol. The injection needle is then filled with 2mL of Lipiodol. The varix is punctured, and the Histoacryl-Lipiodol mixture is injected. Before retraction of the needle, residual glue is pushed into the varix with a further 2mL of Lipiodol. The needle is then retracted, and the catheter is rinsed with water. It is important at this juncture not to activate suction in the endoscope, and to continue irrigation to avoid contact between the glue and the lenses.
Medline.
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Video Endoscopic Sequence 6 of 16.
The image and the video clip show the status of histoacryl injection.
When Histoacryl is mixed in a ratio of 0.5 cm3 (volume per tube of Histoacryl) to 0.8 cm' Lipiodol, hardening is delayed by approximately 20 seconds. The two components are drawn up together into a 2 ml syringe and then mixed by inverting the syringe several times. To help prevent Histoacryl from adhering to the catheter wall, several millilitres of Lipiodol are injected into the catheter.
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Video Endoscopic Sequence 7 of 16.
The image and the video clips show the second shot of histoacryl.
Endoscopic injection of N-butyl-2-cyanoacrylate for gastric variceal bleeding was first reported in 1986. The tissue glue polymerizes on contact with blood, solidifying within the varix instantly, thus obliterating the varix and preventing bleeding. The glue cast will eventually slough off weeks to months later. Because of its excellent efficacy, N-butyl-2-cyanoacrylate is considered to be the optimal therapy for FV bleeding by many clinicians worldwide.
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Video Endoscopic Sequence 8 of 16.
The image and the video clips show the third shot of histoacryl.
The dilution ratio increases if Lipiodol is used to flush the injector before injection. The rationale for diluting Histoacryl with Lipiodol is to delay the otherwise instantaneous polymerization reaction in order to complete the injection and remove the needle.
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Video Endoscopic Sequence 9 of 16.
Hemostatic methods that use standard therapy for esophageal varices have not been found effective for gastric varices. Due to their large size and extensive distribution, it is difficult if not impossible to eradicate gastric varices with sclerotherapy or band ligation. More importantly, tissue necrosis resulting from these endoscopic interventions can cause significant and sometimes disastrous complications.
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Video Endoscopic Sequence 10 of 16.
Conceptually, cyanoacrylate glue provides an ideal endoscopic treatment for gastric varices. Native cyanoacrylate is a liquid with a consistency similar to water and therefore lends itself to intravariceal injection. When added to a physiologic medium such as blood, the cyanoacrylate rapidly polymerizes, forming a hard substance. Thus, after injection into a varix, the cyanoacrylate plugs the lumen. This results not only in rapid hemostasis in cases of active bleeding, but it also prevents the recurrence of bleeding from the treated varix.
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Video Endoscopic Sequence 11 of 16.
The patient has not had any further episodes of gastrointestinal bleeding in the months since her procedure.
Histoacryl is highly effective for the treatment of bleeding gastric varices. The treatment failure-related mortality rate was almost a result of malignancy or underlying liver disease. Serious adverse event may appear although under experienced endoscopist.
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Video Endoscopic Sequence 12 of 16.
Successful obliteration with hardening of variceal bed. A follow up endoscopy one week later was performed.
It is essential to define the endpoint of treatment, as well as have a standardized protocol to achieve the endpoint. The goal of cyanoacrylate injection should be the obliteration of visible varices. The term “obliteration” more accurately describes the desired endpoint than “eradication,” because a varix occluded with cyanoacrylate may remain visible for many weeks. The completeness of obliterationdeserves special emphasis, as cyanoacrylates induce mucosal necrosis at the site of injection.
The amount of Histoacryl required to achieve obliteration will vary depending on varix size and extent. In general, Histoacryl is injected in aliquots of 0.5 mL (content of 1 ampoule), which translates to 1 to 2 mL after dilution with Lipiodol. Obliteration is tested by palpating the varix with the needle retracted. If “soft,” the varix is injected with an additional aliquot of Histoacryl.
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Video Endoscopic Sequence 13 of 16.
Status post injection of histoacryl mixture.
Under normal circumstances blood from the fundus is drained by the short and posterior gastric veins into the splenic vein. In portal hypertension the direction of flow is reversed and blood drains from the spleen toward the stomach into FV. The majority of FVs drain into the inferior phrenic vein, which then joins with either the left renal vein to form the gastrorenal shunt (GRS) (80%-85%) or with the inferior vena cava just below the diaphragm to form the gastrocaval shunt (10%-15%).
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Video Endoscopic Sequence 14 of 16.
Massive transfusions by nature lead to hemodilution, acidosis, hypothermia and ultimately coagulopathy. To minimize these complications it is recommended to replace plasma constituents and platelets with packed red blood cell infusions. A protocol with a replacement ratio of 5 PRBC, 5 FFP and 2 units of platelets minimizes bleeding, hemodilution and persistent thrombocytopenia.
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Video Endoscopic Sequence 15 of 16.
Status post variceal ligation is observed at the cardias.
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Video Endoscopic Sequence 16 of 16.
Fibrin and ulcers of post banding at the esophagus are displayed
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Video Endoscopic Sequence 1 of 4.
Large Gastric Varices.
This 72 year old female with a recurrent episode of bleeding from gastric varices. Seen on retroflexion are pendulous varices in the gastric cardia and fundus.
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Video Endoscopic Sequence 2 of 4.
Ulcerated Gastric Varix.
Primary gastric varices are said to be detected in 20% patients with portal hypertensions. The data suggests that gastric varices bleed less frequently (14%-16%) , but once it bleeds it is torrential and severe.
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Video Endoscopic Sequence 3 of 4.
The patient underwent Cyanoacrylate glue injection for her gastricvarices.
Variceal obstruction with cyanoacrylate tissue adhesive had been used successfully and most studies have achieved control of bleeding in almost 100% of patients.
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Video Endoscopic Sequence 4 of 4.
This image and the video clip was obtained with magnifying endoscope.
Gastric varices develop in patients with portal hypertension , including liver cirrhosis, idiopathic portal hypertension as well as left sided-local portal hypertension such as splenic vein thrombosis or splenic AV malformation. The inflow vein is the left gastric vein, posterior vein, or short gastric vein, while the outflow vein is the gastro-renal shunt in most of the patients with gastric varices. The form of the gastric varices is classified into three types of venous dilatation; tortuous type, notched type and tumor type according to the shape and size of the varices.
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Fundus Varices.
Fundus varices are observed in the maneuver of retroflexion, and the signs of recent bleeding are also observed.
Gastric varices usually accompany esophageal varices, although they may occur alone. They are located in the gastric fundus and are best appreciated endoscopically on retroflexed view.
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Enormous Erosioned Gastric Varix.
Ulcerated Gastric Varix of the fundus that caused severe gastrointestinal hemorrhage.
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Varices of the Gastric Fundus.
More commonly, bleeding gastric varices are associated with large esophageal varices and are due to underlying liver disease.
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Fundus Varices.
A 90 year-old female with fundus varices, recent bleeding activity is observed.
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Status Post Histoacryl.
Histoacryl was injected intravariceally.
Histoacryl injection sclerotherapy is highly effective for the treatment of bleeding gastric varices, with rare complications occurring both acutely and long-term. Therefore, Histoacryl injection sclerotherapy is considered to be the first choice of treatment for bleeding gastric varices, but the rate of recurrent bleeding is so high that further methods or devices still need to be developed in order to prevent gastric variceal rebleeding.
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Video Endoscopic Sequence 1 of 3.
Linear Gastric Varices.
Linear varices in the gastric body of a 72 year-old man with abdominal pain and weight loss. There were no varices in the esophagus or gastric cardia. The woman was ultimately found to have pancreatic carcinoma, and was suspected to have splenic vein thrombosis.
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Video Endoscopic Sequence 2 of 3.
Linear Gastric Varices.
Gastric variceal bleeding can be challenging to the clinician
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Video Endoscopic Sequence 3 of 3.
Linear Gastric Varices.
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Video Endoscopic Sequence 1 of 7.
Gastroesophagic Varices.
This 72 year-old lady, 15 days previous it was hospitalized due to upper gastrointestinal bleeding in another hospital. At that time had an upper endoscopy revealing two ulcers one with visible vessel but they do not described varices of the esophagus, she was discharged from the hospital, two weeks after the patient present a severe re-bled and was hospitalized again, referred to our endoscopic unit, her hemoglobin was 5.7 g/dl.
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Video Endoscopic Sequence 2 of 7.
Ulcerated Gastric Varix
An ulcer with a large visible vassel is seen, retroflexed image.
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Video Endoscopic Sequence 3 of 7.
Ulcerated Gastric Varix
Due to the large vassel as well as the re-bled we decide any hemostatic maneuver to be used.
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Video Endoscopic Sequence 4 of 7.
Ulcerated Gastric Varix.
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Video Endoscopic Sequence 5 of 7.
In this image and video clip you can observe the small ulceration that was coagulated with argon plasma coagulator.
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Video Endoscopic Sequence 6 of 7.
The coagulation with argon plasma is observed.
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Video Endoscopic Sequence 7 of 7.
Gastric Ulcerated Varix
In order to perform a therapeutic hemostasis Argon plasma coagulation was used, but it caused an impressive bleeding to stop this hemorrhage a Sengstaken-Blakemore tube had to be placed using the gastric balloon.
Retrospectively, I would prefer using a rubber band ligation combining with histoacryl to obliterate this large vessel.
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Video Endoscopic Sequence 1 of 7.
Gastroesophagic Varices.
This patient of 66 year-old male who has alcoholic hepatic cirrhosis had been hospitalized in a hospital of national insurance in San Salvador due to a massive bleeding of the upper digestive track a Sengstaken-Blakemore tube had been placed, after ten day of hospitalization the hemorrhage had been continuing, the physicians in that hospital wanted to performed a surgical procedure explained to the patient the high morbi-mortality, patient and his relatives declining that surgery. patient was preferred to our unit performing histoacryl injection in the operation room stopping the hemorrhage, tree shot of histoacryl injection was carry out.
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Video Endoscopic Sequence 2 of 7.
The patient was received from the other hospital with the Sengstaken-Blakemore tube.
The image and the video clip show the status post use the Sengstaken-Blakemore tube, showing the aspect of the mucosa that is edematized, the endoscopic anatomy, is deformed in the gastric fundus and the proximal body.
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Video Endoscopic Sequence 3 of 7.
Through the cardia, one ulcerated gastric varix is observed, which was the exact site of the bleeding.
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Video Endoscopic Sequence 4 of 7.
The cardias is found ulcerated due to the Sengstaken-Blakemore tube, patient had two more ulcers one in the middle third and upper third.
Balloon tamponade is used if sclerotherapy and vasoconstrictor therapy fail to control variceal bleeding or are contra-indicated. The usual tube is a Sengstaken- Blakemore which is passed into the stomach. The gastric balloon is inflated; the esophageal balloon is inflated only if bleeding is not controlled by the gastric balloon. The technique is successful in 90% of cases. Serious complications, with a 5% mortality, include aspiration pneumonia, esophageal rupture and mucosal ulceration. It is very unpleasant for the patient.
Note that balloon tamponade is a temporary measure and it may cause pressure necrosis after 48-72 hours. Thus sclerotherapy or some other means of control should be used after 12-24 hours.
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Video Endoscopic Sequence 5 of 7.
In addition to the ablative therapy of the gastric varix, ten esophageal varices were ligated.
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Video Endoscopic Sequence 6 of 7.
The upper esophageal sphincter was found ulcerated due to Sengstaken-Blakemore tube which found it misplaced.
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Video Endoscopic Sequence 7 of 7.
Status post injection of histoacryl mixture, tree shot of histoacryl injection was carry out.
A follow up endoscopy one month later was performed.
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Video Endoscopic Sequence 1 of 22.
Gastric Varices Rosettes formation
65 year old woman referred to our endoscopic unit for evaluation and treatment of an upper GI bleeding. Recent history includes: 4 days previously, Surgical removal of giant ovarian tumor that compressed great abdominal vessels, also 2 previous episodes of upper GI bleeding, with placement of Sengstaken-Blakemore probe on one occasion.
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Video Endoscopic Sequence 2 of 22.
Gastric Varices Rosettes formation
The first upper endoscopy was practiced in an outpatient setting with signs of recent bleeding. Abundant bloody secretions were aspirated, and the patient was admitted to the hospital for hemodynamic stabilization and monitoring.
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Video Endoscopic Sequence 3 of 22.
Varices were found only in the gastric fundus. No varices were found in the esophagus. No other significant findings were recorded.
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Video Endoscopic Sequence 4 of 22.
We can observe a small ulceration in one of the varices, which could indicate a bleeding spot.
Therapeutic endoscopy was practiced in the operating room with placement of an orotracheal tube to prevent bronchoaspiration.
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Video Endoscopic Sequence 5 of 22.
Another image of the varices located in the gastric fundus.
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Video Endoscopic Sequence 6 of 22.
Due to the gastric washing in order to look for the probable sites of bleeding acute bleeding is reactivated.
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Video Endoscopic Sequence 7 of 22.
Bleeding has been sufficiently severe, we used the therapeutic endoscopy of double channel.
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Video Endoscopic Sequence 8 of 22.
After to have washed and to have aspired abundant blood, the image was partially clarified and seen through the water and in a form of submarine swimming we managed to identify the varix and the probable site of bleeding.
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Video Endoscopic Sequence 9 of 22.
Next step is that to inject a mixture of histoacryl with with lipiodol (0.8 mL in 0.5 mL) will be injected intra-variceal.
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Video Endoscopic Sequence 10 of 22.
It is observed when the mixture of the glue emerges through varix.
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Video Endoscopic Sequence 11 of 22.
The glue emerging from the varix.
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Video Endoscopic Sequence 12 of 22.
The glue in the middle of varix which has stopped the bleeding.
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Video Endoscopic Sequence 13 of 22.
Another image of varix with its glue
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Video Endoscopic Sequence 14 of 22.
In the thorax x-ray the mixture of histoacryl with lipoidol is observed in the gastric bubble
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Video Endoscopic Sequence 15 of 22.
Another image of the glue, the lipoidol makes radio-opaque
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Video Endoscopic Sequence 16 of 22.
3 weeks after a follow up endoscopy was performed
Showing the images and video clips of the 16 to 22 sequence, observing the glue (yellow) that emerges from the varix.
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Video Endoscopic Sequence 17 of 22.
Approach by retroflexión to the varix
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Video Endoscopic Sequence 18 of 22.
Retroflexed image observing the varix with its glue
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Video Endoscopic Sequence 19 of 22.
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Video Endoscopic Sequence 20 of 22.
Gastric Varices Rosettes formation
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Video Endoscopic Sequence 21 of 22.
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Video Endoscopic Sequence 22 of 22.
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